Se connecterS'inscrire gratuitement

Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions

Study 105 cards on organization levels, 11 organ systems, representative organs, core functions, and homeostasis. This model counts integumentary separately and combines lymphatic/immune.

Par Open Study Contributor

À propos de ce paquet

Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions

Build a practical overview of the human body before moving into regional anatomy. These 105 English flashcards start with cells, tissues, organs, organ systems, and homeostasis, then cover the main function and representative structures of each system.

The 11-system model

Anatomy resources do not all group the systems the same way. NCI SEER Training's introductory overview lists ten systems because it does not count the integumentary system separately. This deck uses a common introductory 11-system convention: integumentary; skeletal; muscular; nervous; endocrine; cardiovascular; lymphatic/immune; respiratory; digestive; urinary; and reproductive. It counts integumentary separately and combines lymphatic and immune functions.

What the cards practice

  • Recall each system's main job.
  • Connect representative organs and structures with their system or role.
  • Use a limited set of bounded reverse prompts where producing the system or organ is genuinely useful.
  • Explain a few clear homeostasis links, including movement, gas transport, fat absorption, temperature control, blood composition, sensation, and digestive propulsion.

The deck does not mechanically reverse every fact or treat shared organs as belonging exclusively to one system. The pancreas, gonads, diaphragm, skin, liver, and other cross-system structures are described by the role being reviewed.

Learning order

Organization levels come first. The cards then make repeated passes through all 11 systems: main functions before structures, and structures before selected reverse recall. Each system returns only after ten unrelated cards, so similar prompts do not cue one another. The final ten cards connect systems through homeostasis.

Scope

This is an introductory anatomy and physiology overview. It excludes diagnosis, treatment, clinical advice, detailed pathology, medical procedures, image-identification practice, exhaustive organ lists, and advanced pathway detail. It supports study but does not replace a full course, lab, or medical guidance.

Facts were checked primarily against the NCI SEER Training anatomy modules, with focused cross-checks from NIAMS on skin, NIAID on the immune system, and NIDDK overviews of digestion and the urinary tract.

The prompts, answers, sequence, metadata, and generated cover were independently created from common knowledge and original work. No competitor cards, textbook prose, source figures, logos, or third-party media were copied.

The Common knowledge · CC0 1.0 label applies to the original wording, organization, metadata, and cover to the extent applicable rights exist. It does not claim ownership of anatomical facts.

Source review date: August 31, 2026.

Cartes de ce paquet

  1. Carte 1

    Question

    Why can two anatomy resources give different counts for the body's organ systems?

    Réponse

    Classification conventions vary. This deck uses 11 systems by counting the integumentary system separately and combining lymphatic and immune functions.

  2. Carte 2

    Question

    What is the usual order of biological organization from simplest to most complex in the human body?

    Réponse

    Cells → tissues → organs → organ systems → organism.

  3. Carte 3

    Question

    What is a cell in the body's organization hierarchy?

    Réponse

    The basic living unit of the body.

  4. Carte 4

    Question

    What is a tissue?

    Réponse

    A group of similar cells, together with their surrounding material, organized to perform a shared function.

  5. Carte 5

    Question

    What is an organ?

    Réponse

    A structure made of multiple tissue types working together for one or more specific functions.

  6. Carte 6

    Question

    What is an organ system?

    Réponse

    A group of organs and related structures that cooperate in major body functions.

  7. Carte 7

    Question

    What does homeostasis mean in introductory physiology?

    Réponse

    Maintaining a relatively stable internal environment while conditions inside or outside the body change.

  8. Carte 8

    Question

    What is the integumentary system's main job?

    Réponse

    It forms the body's outer barrier, limits water loss, helps regulate temperature, and provides sensation.

  9. Carte 9

    Question

    What are the skeletal system's main jobs?

    Réponse

    Support and protect the body, provide levers for movement, store minerals, and house blood-forming marrow.

  10. Carte 10

    Question

    What is the muscular system's main job?

    Réponse

    It produces body movement through muscle contraction and also supports posture, joint stability, and heat production.

  11. Carte 11

    Question

    What is the nervous system's main job?

    Réponse

    It detects changes, integrates information, and coordinates rapid responses through sensory, processing, and motor activity.

  12. Carte 12

    Question

    What is the endocrine system's main job?

    Réponse

    It uses hormones to regulate processes such as growth, metabolism, development, reproduction, and long-term homeostasis.

  13. Carte 13

    Question

    What is the cardiovascular system's main job?

    Réponse

    It circulates blood to transport gases, nutrients, hormones, heat, cells, and wastes around the body.

  14. Carte 14

    Question

    What are the lymphatic/immune system's main jobs in this deck's combined model?

    Réponse

    It returns excess tissue fluid to the blood, supports immune defense, and carries absorbed fats from the small intestine.

  15. Carte 15

    Question

    What is the respiratory system's main job?

    Réponse

    It brings oxygen into contact with the blood and removes carbon dioxide through gas exchange.

  16. Carte 16

    Question

    What is the digestive system's main job?

    Réponse

    It breaks food into absorbable components, absorbs nutrients and water, and eliminates material that was not digested.

  17. Carte 17

    Question

    What is the urinary system's main job?

    Réponse

    It removes wastes in urine and regulates body-fluid volume, electrolytes, and acid-base balance.

  18. Carte 18

    Question

    What is the reproductive system's main job?

    Réponse

    It produces gametes and reproductive hormones and provides structures that support fertilization and, in the female system, development before birth.

  19. Carte 19

    Question

    Which organ system includes the skin?

    Réponse

    The integumentary system.

  20. Carte 20

    Question

    Which organ system includes bones?

    Réponse

    The skeletal system.

  21. Carte 21

    Question

    In the conventional organ-system model, what structures make up the muscular system?

    Réponse

    Primarily skeletal muscles and their associated tendons. Smooth and cardiac muscle tissue also drives movement inside other organ systems.

  22. Carte 22

    Question

    Which structures make up the central nervous system?

    Réponse

    The brain and spinal cord.

  23. Carte 23

    Question

    How do endocrine glands release hormones?

    Réponse

    They release hormones into the surrounding fluid and blood rather than through ducts to a surface.

  24. Carte 24

    Question

    What does the heart do in the cardiovascular system?

    Réponse

    It pumps blood through the pulmonary and systemic circuits.

  25. Carte 25

    Question

    What is lymph?

    Réponse

    Interstitial fluid after it enters lymphatic capillaries and begins moving through lymphatic vessels.

  26. Carte 26

    Question

    What route does inhaled air follow from the nose toward the gas-exchange surfaces?

    Réponse

    Nasal cavity → pharynx → larynx → trachea → bronchi → smaller airways → alveoli.

  27. Carte 27

    Question

    What is the gastrointestinal tract?

    Réponse

    A continuous muscular tube from the mouth to the anus that includes the esophagus, stomach, small intestine, and large intestine.

  28. Carte 28

    Question

    Which four structures form the urinary tract?

    Réponse

    The kidneys, ureters, urinary bladder, and urethra.

  29. Carte 29

    Question

    What are the gonads, and what do they produce?

    Réponse

    The ovaries and testes. They produce gametes and reproductive hormones.

  30. Carte 30

    Question

    Which skin layer is the outer protective barrier?

    Réponse

    The epidermis.

  31. Carte 31

    Question

    What is cartilage's main role in the skeletal system?

    Réponse

    It provides flexible support and smooth, low-friction surfaces at many joints.

  32. Carte 32

    Question

    What does a tendon connect?

    Réponse

    Muscle to bone.

  33. Carte 33

    Question

    What structures make up the peripheral nervous system?

    Réponse

    Nerves, ganglia, and sensory endings outside the brain and spinal cord.

  34. Carte 34

    Question

    What is the pituitary gland's broad endocrine role?

    Réponse

    It releases hormones that regulate several other endocrine glands and body functions.

  35. Carte 35

    Question

    In what direction do arteries carry blood?

    Réponse

    Away from the heart.

  36. Carte 36

    Question

    What do lymph nodes do?

    Réponse

    They filter lymph and serve as meeting points where immune cells sample material and coordinate responses.

  37. Carte 37

    Question

    What are alveoli?

    Réponse

    Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged with the blood.

  38. Carte 38

    Question

    What is the esophagus's digestive role?

    Réponse

    It transports swallowed material from the pharynx to the stomach.

  39. Carte 39

    Question

    What do the kidneys do?

    Réponse

    They filter blood, remove wastes and excess substances into urine, and regulate water, electrolytes, and acid-base balance.

  40. Carte 40

    Question

    What do the ovaries produce?

    Réponse

    Oocytes, commonly called egg cells, and hormones including estrogens and progesterone.

  41. Carte 41

    Question

    Which skin layer contains most skin blood vessels, sensory endings, hair follicles, and glands?

    Réponse

    The dermis.

  42. Carte 42

    Question

    What does a ligament connect?

    Réponse

    Bone to bone, helping stabilize a joint.

  43. Carte 43

    Question

    What makes skeletal muscle suited for moving the skeleton?

    Réponse

    It contracts under voluntary control and pulls on bones through tendons.

  44. Carte 44

    Question

    What do sensory receptors contribute to the nervous system?

    Réponse

    They detect changes inside or outside the body and convert them into signals the nervous system can process.

  45. Carte 45

    Question

    What is the thyroid gland's broad endocrine role?

    Réponse

    It releases hormones that help regulate metabolic rate, growth, and development.

  46. Carte 46

    Question

    In what direction do veins carry blood?

    Réponse

    Toward the heart.

  47. Carte 47

    Question

    What is the spleen's lymphatic/immune role?

    Réponse

    It filters blood, removes aging blood cells, and supports immune responses to material carried in the bloodstream.

  48. Carte 48

    Question

    What is the trachea's respiratory role?

    Réponse

    It conducts air from the larynx toward the bronchi and helps keep the airway open.

  49. Carte 49

    Question

    What is the stomach's main digestive role?

    Réponse

    It stores and mixes food while beginning substantial chemical digestion of proteins.

  50. Carte 50

    Question

    What do the ureters do?

    Réponse

    They carry urine from the kidneys to the urinary bladder.

  51. Carte 51

    Question

    What do the testes produce?

    Réponse

    Sperm cells and hormones, especially testosterone.

  52. Carte 52

    Question

    How do sweat glands help regulate body temperature?

    Réponse

    They release sweat; evaporation from the skin removes heat.

  53. Carte 53

    Question

    What is red bone marrow's main role?

    Réponse

    It produces blood cells, including red blood cells, many white blood cells, and platelets.

    A centered human figure with illustrated brain, lungs, heart, digestive organs, bones, muscles, nerves, and lymphatic motifs on a blue background.

    105 cartes

    Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions

    Réviser ce paquet gratuitement

    Nibomo s'ouvre pour que vous puissiez commencer à réviser.

  54. Carte 54

    Question

    What does smooth muscle do in the walls of hollow organs and blood vessels?

    Réponse

    Its involuntary contractions move contents through organs or adjust a vessel's diameter.

  55. Carte 55

    Question

    What is a neuron's basic job?

    Réponse

    To receive, process, and transmit information using electrical and chemical signals.

  56. Carte 56

    Question

    What is the broad endocrine role of the parathyroid glands?

    Réponse

    They release parathyroid hormone, a key regulator of calcium levels in the blood.

  57. Carte 57

    Question

    What is the main job of capillaries?

    Réponse

    They provide thin-walled exchange sites between blood and surrounding tissues.

  58. Carte 58

    Question

    What is the thymus's immune role?

    Réponse

    It is where T lymphocytes mature.

  59. Carte 59

    Question

    What do the bronchi do?

    Réponse

    They carry air from the trachea into the lungs and branch into progressively smaller airways.

  60. Carte 60

    Question

    What is the small intestine's main digestive role?

    Réponse

    It completes most chemical digestion and is the main site where nutrients are absorbed.

  61. Carte 61

    Question

    What is the urinary bladder's main role?

    Réponse

    It stores urine until urination.

  62. Carte 62

    Question

    What do the uterine tubes do?

    Réponse

    They transport an oocyte from an ovary toward the uterus and are the usual site of fertilization.

  63. Carte 63

    Question

    What roles do hair and hair follicles serve in the integumentary system?

    Réponse

    They contribute to protection and sensation; follicles also help renew skin after minor injury.

  64. Carte 64

    Question

    How do the axial and appendicular skeletons differ?

    Réponse

    The axial skeleton forms the body's central axis; the appendicular skeleton includes the limbs and the girdles that attach them.

  65. Carte 65

    Question

    Where is cardiac muscle found?

    Réponse

    In the wall of the heart, where it contracts involuntarily to pump blood.

  66. Carte 66

    Question

    Why can the nervous system coordinate rapid responses?

    Réponse

    It sends fast electrical signals along neurons and uses chemical signals across synapses.

  67. Carte 67

    Question

    What is the broad endocrine role of the adrenal glands?

    Réponse

    They release hormones involved in stress responses, metabolism, salt balance, and blood-pressure regulation.

  68. Carte 68

    Question

    Why is blood considered part of the cardiovascular system?

    Réponse

    It is the circulating transport tissue moved through the heart and blood vessels.

  69. Carte 69

    Question

    What immune role do the tonsils serve?

    Réponse

    They sample material entering through the mouth and nose and help start immune responses.

  70. Carte 70

    Question

    How does the diaphragm support the respiratory system?

    Réponse

    Its contraction enlarges the thoracic cavity, drawing air into the lungs. It is skeletal muscle working in ventilation.

  71. Carte 71

    Question

    What is the large intestine's main digestive role?

    Réponse

    It absorbs water and electrolytes and compacts the remaining material into feces.

  72. Carte 72

    Question

    What does the urethra do?

    Réponse

    It carries urine from the bladder to the outside of the body.

  73. Carte 73

    Question

    What is the uterus's main reproductive role?

    Réponse

    It receives an implanted embryo and supports development before birth.

  74. Carte 74

    Question

    What do nails contribute to the integumentary system?

    Réponse

    They protect the tips of fingers and toes and provide a firm counter-surface for fine grasping.

  75. Carte 75

    Question

    Which skeletal structures protect the brain, spinal cord, heart, and lungs?

    Réponse

    The skull protects the brain, vertebrae protect the spinal cord, and the rib cage helps protect the heart and lungs.

  76. Carte 76

    Question

    How does skeletal muscle contribute to posture and body temperature?

    Réponse

    Ongoing small contractions stabilize posture, while muscle activity releases heat.

  77. Carte 77

    Question

    How do the central and peripheral nervous systems differ?

    Réponse

    The central nervous system is the brain and spinal cord; the peripheral system connects them with the rest of the body.

  78. Carte 78

    Question

    What do the pancreatic islets contribute to the endocrine system?

    Réponse

    They release hormones, including insulin and glucagon, that help regulate blood glucose.

  79. Carte 79

    Question

    How do pulmonary and systemic circulation differ?

    Réponse

    Pulmonary circulation moves blood between the heart and lungs; systemic circulation moves it between the heart and the rest of the body.

  80. Carte 80

    Question

    What do intestinal lacteals absorb?

    Réponse

    Dietary fats and fat-soluble vitamins from the small intestine into the lymphatic circulation.

  81. Carte 81

    Question

    What is external respiration?

    Réponse

    The exchange of oxygen and carbon dioxide between air in the lungs and blood in pulmonary capillaries.

  82. Carte 82

    Question

    Which major accessory organs add secretions to the digestive tract?

    Réponse

    The salivary glands, liver, gallbladder, and pancreas.

  83. Carte 83

    Question

    How do the kidneys help keep body fluids stable?

    Réponse

    They adjust how much water, electrolytes, acids, and bases leave the body in urine.

  84. Carte 84

    Question

    What is the epididymis's reproductive role?

    Réponse

    It is the coiled duct where sperm mature and are stored before entering the ductus deferens.

  85. Carte 85

    Question

    Which organ system includes hair, nails, sweat glands, and oil glands?

    Réponse

    The integumentary system.

  86. Carte 86

    Question

    Which organ system stores most of the body's calcium?

    Réponse

    The skeletal system, mainly in the mineral matrix of bone.

  87. Carte 87

    Question

    Which organ system produces most visible body movement through contraction?

    Réponse

    The muscular system, working with the skeleton and nervous system.

  88. Carte 88

    Question

    Which organ system coordinates rapid sensory and motor responses?

    Réponse

    The nervous system.

  89. Carte 89

    Question

    Which organs have both reproductive and endocrine roles?

    Réponse

    The ovaries and testes: they produce gametes for the reproductive system and hormones for endocrine signaling.

  90. Carte 90

    Question

    Which organ system consists of the heart, blood, and a closed network of vessels?

    Réponse

    The cardiovascular system.

  91. Carte 91

    Question

    Which organ system returns excess interstitial fluid to the blood and includes lymph nodes?

    Réponse

    The lymphatic/immune system.

  92. Carte 92

    Question

    Which organ system removes carbon dioxide and thereby helps regulate blood pH?

    Réponse

    The respiratory system.

  93. Carte 93

    Question

    Why are the liver, gallbladder, and pancreas called accessory digestive organs?

    Réponse

    Food does not pass through them, but their secretions support digestion in the gastrointestinal tract.

  94. Carte 94

    Question

    Which urinary organ stores urine before it leaves the body?

    Réponse

    The urinary bladder.

  95. Carte 95

    Question

    Which reproductive organ supports an implanted embryo and fetal development?

    Réponse

    The uterus.

  96. Carte 96

    Question

    How do the skeletal and muscular systems work together to produce movement?

    Réponse

    Skeletal muscles contract and pull on bones, which act as levers across joints.

  97. Carte 97

    Question

    How do the respiratory and cardiovascular systems cooperate in gas transport?

    Réponse

    The respiratory system exchanges gases in the lungs; the cardiovascular system carries oxygen to tissues and returns carbon dioxide to the lungs.

  98. Carte 98

    Question

    How do the nervous and endocrine systems differ in body control?

    Réponse

    The nervous system usually sends fast, targeted signals; the endocrine system sends hormones through the blood for generally slower, longer-lasting effects.

  99. Carte 99

    Question

    How do the digestive and lymphatic systems cooperate in fat absorption?

    Réponse

    Lacteals in small-intestinal villi absorb dietary fats and carry them into the lymphatic circulation.

  100. Carte 100

    Question

    How do the integumentary and muscular systems help regulate body temperature?

    Réponse

    Skin promotes heat loss through sweating and blood-flow changes, while muscle contraction produces heat.

  101. Carte 101

    Question

    How does the urinary system support cardiovascular homeostasis?

    Réponse

    By adjusting water and electrolyte excretion, the kidneys help regulate blood volume, composition, and pressure.

  102. Carte 102

    Question

    How do the endocrine and reproductive systems cooperate?

    Réponse

    Hormones regulate reproductive development and function, while the gonads produce both gametes and hormones.

  103. Carte 103

    Question

    How do the skeletal and lymphatic/immune systems connect through bone marrow?

    Réponse

    Red bone marrow produces blood cells, including white blood cells that take part in immune defense.

  104. Carte 104

    Question

    How do the integumentary and nervous systems cooperate in sensation?

    Réponse

    Receptors in the skin detect touch, temperature, pressure, and potentially harmful stimuli, then sensory nerves carry those signals toward the central nervous system.

  105. Carte 105

    Question

    How do the muscular and digestive systems cooperate to move food?

    Réponse

    Smooth muscle in the digestive tract produces coordinated contractions that propel and mix its contents.

A centered human figure with illustrated brain, lungs, heart, digestive organs, bones, muscles, nerves, and lymphatic motifs on a blue background.

105 cartes

Human Body Systems Flashcards: 11 Organ Systems, Organs & Functions

Réviser ce paquet gratuitement

Nibomo s'ouvre pour que vous puissiez commencer à réviser.